Page 179 - Scratch Programming Playground

New dark orange blocks will appear under the Make a
List button.

lists have more than set to and change by blocks. lists
have values, but each value also has a position, so the values
need different kinds of code blocks. positions in a list are
defined by numbers; number 1 is the first value in the list.
the following blocks control lists:

X X the add to block adds a value to the end of the list.
X X the delete block removes the value at a certain position.
X X the insert at block is like the add to block, but you can
also select the position where the value should be inserted.
X X the replace item block is like a combination of delete
and insert at. It replaces the value at a certain position
with a new value.
add the following code and then double-click it to run it.
take a look at the effects of these code blocks on a list named
example list.
(continued)

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